Device for imparting crinkle to warp threads



1 .1927. May 0 w. K. GUNTER DEVICE FOR IMPARTING CRINKLB To WARP THREADSFiled Sept; 2a, 1926 Patented May 10, 1927.

WILLIAM K. GUN TIER, 0F GAFFNEY, SOUTH CAROLINA, ASSIGNOR TO DERBYDAMASK 1,628,142 PATENT OFFICE.

MILLS, A CORPORATION OF SOUTH CAROLINA.

DEVICE FOR IMPARTING CRINKLE TO WARP THREADS.

Application filed September 28, 1926. Serial No, 138,264.

This invention is a device to be attached to a standard type loom, forthe purpose of imparting an even crinkle to certain of the warp threadsduring the manufacture of socalled crinkled cloth.

crinkled cloth used in the manufacture of bedspreads and the like,special attachments for the looms producing such cloth have been foundnecessary. Such devices are more or less unsatisfactory because theyrequire alterations in the loom, and the product does not possess adesirable permanence.

One of the objects of the invention is to provide a simple device forimparting a crinkle to the warp threads, said device he ing capable ofready substitution for the usual whip roll arm normally utilized as apart of a standard type loom. A further object is to provide a vibratoryor oscillatory whip roll arm, having means for so supporting a pluralityof whip rolls, that during oscillations of said arm in synchronism withthe operation of the loom, a greater tension will be periodicallyapplied to one warp thread than to the other, so that a uniform crinklewill be imparted to the thread which is under the lesser tension. Afurther object is to provide a Whip roll arm having means for supportingtwo whip rolls in planes out of radial alignment with respect to theaxis onwhich the roll oscillates, but movable in concentric arcs, sothat oscillations of said arm will periodically slacken the top warpthread and cause it to crinkle, and the same motions will tighten thebottom warp thread in a manner to tighten the filling, and to hold thecrinkle as the threads are incorporated into the cloth.

The invention will be hereinafter fully set forth and particularlypointed out in the claims. 1 i

In the accompanying drawing:

Figure 1 is a diagrammatic view, partly in section, illustrating a loomwith the invention applied thereto. Figure 2 is an enlarged detail Viewillustrating the whip roll arm.

Referring to the drawing, 10 designates the frame of a loom, 11 is theupper warp beam, and 12 the lower warp beam. The lease rods areindicated at 13, the heddles at 1 1, the lay at 15, the cloth breast at16, and the cloth roll at 17. These elements are all standardconstructions well known in the a link 20.

art, and are diagramn'iatically shown for illustrative purposes only.

The usual whip roll shaft 18 is mounted to oscillate in a suitableposition withinv the I v frame 10, movements being imparted to saidI-Ieretofore in the production of so called shaft by means of an arm 19,connected with Said link is reciprocated bythe loom mechanism insynchronism with the other moving parts of the loom, in a manner so wellunderstood in the art that it is deemed. unnecessary to illustrate thesame in detail.

Secured to the shaft 18, so as to oscillate therewith, and locatedintermediate between the upper and lower warp beams, is a whip roll armcomprising a body 21 of approximately ogee form as viewed in sideelevation. One end of said body is provided with a boss 22 for engagingthe shaft 18, and the other extremity is offset with respect to the restof the body, as indicated at 23, and

provided with a bearing 21 for the upper whip roll 25. Intermediatebetween the ends of the whip roll arm, and in a lower plane than thebearing 2 1, is a bearing 26 for the lower whip roll 27. It will beobserved that by reason of the approximate ogee shape of the arm 21, theaxesof the whip rolls 25 and 27 are not in radial alignment with respectto the axis of the shaft 18, but they are so supported that they move inconcentric arcs with respect to said axis. 1

In operation, the shaft 18 is periodically oscillated in a manner wellunderstood in the art. It will be observed that as its free end warpthread 6, because of the posit-ion of the roll 27 with respectto theroll 25 and the shaft 18. The slackening of the thread a causes it tocrinkle, and as it is led to the lease rods and heddles, the tensionedthread 6 will tighten the filling and thereby serves to maintain thecrinkle as the two threads are incorporated into the cloth by thepassageof weft threads through the shed, as the weaving progresses. In thismanner a very effective and pleasing crinkly or wavy effect is impartedto the cloth, sufficiently permanent in character to maintain itscrinkly condition notwithstanding repeated launderings.

The advantages of the invention will be readily apparent to thoseskilled in the art to which it belongs. -An important advantage is thatthe whip roll arm, provided with means for carrying two rolls out ofalignment with the axis of oscillation of the arm, may be substitutedtorthe standard whiproll arm, and in this manner any Ordinary loom may bereadily provided with equipment for the weaving of crinkly cloth. Itwill be particularly noted that the device is exceedingly simple andinexpensive in construction, and will not readily get out of order orbecome deranged.

Having thus explained the nature of the invention and described anoperative manner of constructing and using the same, although withoutattempting to set forth all of the forms in which it maybe made, or allof the forms of its use, what is claimed is:

1. A device for imparting crinkle to warp threads comprisinganoscillatory whip roll arm adapted to be located intermediate between theupper and lower warp beams, said arm having means for supporting aplurality of whip rolls in spaced relation with res acct to each otherbut out of alignment witi respect to the axis of oscillation of saidarm, so thatthe thread of one whip roll will be under less tension thanthe tl'iread ot the other whip roll when the arm is oscillated whereby acrinkle will be produced in the first mentioned thread.

2. A device for inugarting crinkle to warp threads comprising anoscillatory whip roll arm adapted to be located intermediate betweenupper and lower warp beams, said arm having means intern'iediate betweenits ends for supporting a whiproll, and having a curved extensionprovided with means contiguous to the end thereof for supporting asecond whip roll, said whip rolls being out of radial alignment withrespect to the axis of oscillation oi said arm, so that the thread ofone whip roll will be under less tension than the thread of the otherwhip roll when the arm is oscillated, whereby a crinkle is produced inthe'first mentioned thread.

3. A device for imparting crinkle to warp threads comprising anoscillatory whip roll arm adapted tobe located intermediate betweenupper and lower warp beams, said arm being of approximately ogee tormhaving means at one end by which it may be supported, means intermediatebetween its ends for supporting a whip roll, and means at the extremityof its free end for supporting a second whip roll, said rolls being outof duced in the 'firstm'entioned thread.

' 4. A device for-impartingcrinkle to warp threads comprising a whiproll arm adapted to be located intermediate between upper and lower Warpbeams, said arm having a curved body and an offset extremity at one end,and a shaft engaging boss at the other end, said curved body ,havingmeans for supporting a whip roll, and said otl'set extremity havingmeans tor supporting a second whip roll, said whip rolls beingmaintained out of radial alignment with respect to the axis of said bossso that the thread of one whip roll willbe under less tension than thethread of the other whip roll when the arm is oscillated, whereby acrinkle in the first mentioned thread is produced.

5. A device for imparting crinkle to warp threads comprising a whip rollarm adapted to be located intermediate between upper and lower warpbeams, said arm being or approximately ogee form having a shaft engagingboss at one end, and means at the other end for supporting a whip roll,said arm having means intermediate between said ends for supportinganother whip roll, said rolls being maintained out of radial alignmentwith respect to the axis of said boss. so that the thread of one whiproll will be under less tension'than the thread of the other whip rollwhen the arm is oscillated. whereby a crinkle is produced in the firstmentioned thread.

6. The combination with a loom, the loom harness, and upperand lowerwarp beams, of a whip roll arm located intermediate between said warpbeams, an oscillatory support for said arm, means for oscillating saidarm in time with said harness, whip rolls mounted on said arm in spacedrelation with respect to each other but out of radial alignment withrespect to the axis of said oscillatory support, so that the thread ofone whip roll will be under less tension than the thread of the otherwhip roll when the arm is oscillating,- whereby a crinkle is produced inthe first mentioned thread.

In testimony "whereof I have hereunto set my hand.

WILLIAM R. GUNTER.

